Cableway carriage



Feb. 13, 1923.

I G.A FRINK.

y CABLLEWAY CARRIAGE.

man xuw'zz. 192|.

Patented Pelo. i3,

narra GERALD FRINK, OE SEATTLE, WASHNG'TON.

CABLEWAY CARRIAGE.

application med. ruhe 2,

To all whom t may concer/n.'

Be it lrnown that l, GERALD Falun, citizen of the United States oi America, and resident of the city of Seattle, in the county o King and State of l/lashington, have invented certain new and usci-'ul improve` ments in Cableway Carriages, ot which the l tribution of the load will not be. secured for following is a specification.

My invention relates to cableway car-:1

riages and consists of certain constructions which are designed-to better adapt the 'car-I ria-ge for carrying heavy loads 'by distribute' ing the load over more wheels, and also to ydecrease the angle of bend ot the cables in passing over the wheels.

A further object oi my .invention is to provide such supports for and to so run the hoisting cables over them, as to avoid bending this cable alternately in opposite directions, thereby reducing the internal friction and wear in such cables. l

In the accompanying drawings flhave shown my invention in :terms of construction which well illustrate the principles of my invention and in the form which is now preferred by me. c

Figure'l shows a cableway carriage having my invention embodied therein, one side plate being removed to better show the position and relation ot' the wheels.

Figure 2 is a vertical transverse section through that part of the carriage containing the fall rope pulleys.

Figure 3 isa view similar to that of Figure l but `modified to tit a double or looped main line or traclrway cable.

The ordinary cableway carriage, it running on a single traclrway or main cable, has two pulleys which support the carriage upon the cable. In heavy duty work this 'produces very great pressure between the cable and the pulleys, often suiiicient in intensity to somewhat deform .or compress the cable. Recognizing this fact it has been my object to provide a plan and means whereby the number of carrying wheels may be in` creased, thereby reducing the pressure ciA each upon the cable, and also to provide means whereby the hoist cable will be bent only in one direction. v

The rst mentioned result, is secured by increasing the number of wheels which run upon the cable. In Figure 1 of the drawings I have shownl a carriage containing three carrying wheels, 1, 2 and 3. If three wheels be journaled in a rigid frame, an equal dis- 1921. Serial No. 474,492.

I tribution of weight will not be secured. H

the bearing edges of the wheels be placed in a straight line, the center wheel will hardly carry any load, as to carry any load a wheel must deflect the cable., f

'Even it the center wheel., as 2, be offset, while it will carry some load, an equal disthe reason that the angular relation of the parts of the cable atl opposite sides ofthe carriage will vary with the sag in the cable and also with the position of thef'carriage lengthwise of the cable.

To secure equal loads upon the'v carryingy carriage from these levers by' links, as 5, 5,

which are connected with thelv equalizing levers at points which are one third of the distance trom the axis oli the outer wheels l and `3 to the center wheel 2. ln this way each wheel must carry one third'of: the load,

ployed.V This is so obvious that specific illustration thereot is hardly thought necessary. The construction of `the other parts of the carriage may also be varied.` This part of the carriage as shown in the drawings has v two side plates 6, between which are jourcofy nalecl 'four sheave wheels 7, 70, 8, and 80.

The drawings show the outer plate of the carriage removed to better show these wheels and the manner of disposing of the hoist" rope.

In the type of carriage wherein the hoist rope is a running line, that is passes through the carriage, and has a hoist block in a de- Instead ot following the above plan I pro. vide two additionalA sheave wheels or pul-` leys, 70 and 80, crossing. the two parts ofthe line ll in their passage between thev upper and the lower sheaves.

By this expedient the bending ot the line vis everywhere in the `of 'the carriage and the sheaves 8 and 80 at the opposite side. Allthese sheaves may alilre in construction, tvvo being turned oppositely to the other two. By this expedient f the crossingparts of the line 'll are prelooped main line system.

vented from rubbing together.

In Figure 3 l: have shown how a carriage embodying the principles o my invention might be constructed to apply to a double or The lines l() and 10 are both main or. track'xvay lines. A second set of carrying sheaves l', 2 and 3 are provided for line i0 and `journaled in equalizing hars 4; and 40 and these are connected with ythe equalizing hars ot the other like system by links 5..

The lines 13 and 14;, represent haul and back haiil lines.

'll/Vith the carrying sheaves ot' the carriage mounted in equalzing bars as shown, each sheave at all times and under all conditions,

carries its proportion of the load. The central sheave will drop 1oelovv'the line. connectthe oiitery sheave and the amount of such 'offset will vary with the sag of the line. l/Vith a very taut line and a small sag the otset will he slight, lout with a large sag in the line the offset will loe increased. Within "the limits of possible. relative movement between the sheaves? the otlset will at all times he such that the angle or' loend `of the line in passing each sheave will he uniform.

l/Vhat claim as my invention is:

l. A cahleway carriage having four guide pulleys for a running hoist vrope positioned to lguide the rope Corning from opposite sides to cross 'Within the carriage.

` 2. A cahleway carriage having four guide pulleys ttor a. running line positioned at the corners et a quadrangle, the pulleys of two opposite corners lhaving ytheir line grooves offset towards one side ot the carriage and those at the other opposite corners oiset to- `Wards the other side of the carriage.

3. lncomloination, a cahleway carriage, a'

running line, a block in a lloop of said line, two pairs of guide pulleys for said line journaled in the carriage to guide the line corning from opposite sides of the carriage to cross and in laterally offset planes.

Signed at Seattle, King County, Washington this 27' day of May 1921.l

essere renne 

